Mendelian Genetics

Question 1

What is an allele?

Answer 1

a gene that exists as more than one form e.g. A or a

Question 2

What is the difference between heterozygous and homozygous?

Answer 2

heterozygous means more than one form (e.g. Aa) and homozygous means the same (e.g. AA or aa)

Question 3

What is a phenotype?

Answer 3

physical features of organisms, or characters, that exist in different forms, or traits

Question 4

What is a heritable trait?

Answer 4

one that can be passed from parent to offspring

Question 5

Mendel’s first law of segregation:

Answer 5

“when an organism forms gametes, only one of a pair if traits (alleles) enters each gamete”